Now my head is really spinning....
could JH have taken Somer immediatly from the Orange Park area to Callahan, did what he did, then drove the 30 minutes or so from Callahan to the public landfill and disposed of her precious little body????
That would explain how he would have had time to do what he did (I hate typing the horrid details that are in my mind), kill her, and dispose of her that night while Orange Park was on high alert searching for Somer.
He could have been long gone from the area by 5:00pm.
JMO - and thinking out loud.
ETA: he could have planned this out way beforehand and knew he would have to get her out of the neighborhood quickly before LE started searching.